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Add README.md for Scripts directory

Brandon Thetford 1 year ago
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+## Development and Design-Time PowerShell Modules
+This directory contains PowerShell modules for use when working with Terminal.sln
+
+### Purpose
+These modules will be modifed and extended as time goes on, whenever someone decides to add something to make life easier.
+
+### Requirements
+These modules are designed for **PowerShell Core, version 7.4 or higher**, on any platform, and must be run directly within a pwsh process.\
+If you want to use them from within another application, such as PowerShell hosted inside VSCode, you must first run `pwsh` in that terminal.
+
+As the primary development environment for Terminal.Gui is Visual Studio 2022+, some functionality may be limited, unavailable, or not work on platforms other than Windows.\
+Most should still work on Linux, however.\
+Functions which are platform-specific will be documented as such in their Get-Help documentation.
+
+Specific requirements for each module can be found in the module manifests and will be automatically imported or, if unavailable, PowerShell will tell you what's missing.
+
+### Usage
+From a PowerShell 7.4 or higher prompt, navigate to your Terminal.Gui repository directory, and then into the Scripts directory (the same directory as this document).
+
+#### Import Module and Configure Environment
+Run the following command to import all Terminal.Gui.PowerShell.* modules:
+```powershell
+Import-Module ./Terminal.Gui.PowerShell.psd1
+```
+If the environment meets the requirements, the modules will now be loaded into the current powershell session and exported commands will be immediately available for use.
+
+#### Getting Help
+All exported functions and commandlets are provided with full PowerShell help annotations compatible with `Get-Help`.
+
+See [The Get-Help documentation at Microsoft Learn]([https://](https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/get-help?view=powershell-7.4)) for Get-Help information.
+
+#### Cleaning Up/Resetting Environment
+No environment changes made by the modules on import are persistent.
+
+When you are finished using the modules, you can optionally unload the modules, which will also reset the configuration changes made on import, by simply exiting the PowerShell session (`exit`) or by running the following command:\
+**NOTE DIFFERENT TEXT FROM IMPORT COMMAND!**
+```powershell
+Remove-Module Terminal.Gui.PowerShell
+```
+
+### LICENSE
+MIT License
+
+Original Author: Brandon Thetford (@dodexahedron)
+
+See COPYRIGHT in this directory for license text.